Cylinder Head Gasket – Fits Yamaha 150HP F150 4-Stroke Outboard (Replaces 63P-11181-00-00)
Cylinder Head Gasket – Fits Yamaha 150HP F150 4-Stroke Outboard (Replaces 63P-11181-00-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Cylinder Head Gasket – Fits Yamaha 150HP F150 4-Stroke Outboard (Re...
Product Details
This Cylinder Head Gasket is engineered for Yamaha 150HP 4-Stroke outboard engines, specifically fitting F150 and LF150 series models from 2004 to 2022. It ensures a precise seal for optimal engine performance and reliability.
It serves as a direct replacement for Yamaha OEM part number 63P-11181-00-00.
- Designed for direct, hassle-free installation.
- Constructed from high-quality metal to withstand marine environments.
- Engineered for use with gasoline-powered outboards.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 63P-11181-00-00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha Outboards: This part is confirmed to fit the following 150HP 4-stroke models. Note that compatibility may extend to other models not listed here.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F150TXR | 150 | 4-Stroke | 2004–2007 | 63P-11181-00-00 | |
| Yamaha | F150TXRC | 150 | 4-Stroke | 2004 | 63P-11181-00-00 | |
| Yamaha | F150LA | 150 | 4-Stroke | 2013 | 63P-11181-00-00 | |
| Yamaha | F150JA | 150 | 4-Stroke | 2014 | 63P-11181-00-00 | |
| Yamaha | F150JB | 150 | 4-Stroke | 2020 | 63P-11181-00-00 | |
| Yamaha | F150XB | 150 | 4-Stroke | 2015 | 63P-11181-00-00 | |
| Yamaha | F150LB2 | 150 | 4-Stroke | 2021–2022 | 63P-11181-00-00 | |
| Yamaha | LF150XA | 150 | 4-Stroke | 2014 | 63P-11181-00-00 |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct Replacement
- Fuel Type
- Gasoline
- Material
- Metal
- Color
- Black
- Dimensions
- 51.0 × 28.0 × 0.4 cm
- Weight
- 450g (0.99 lb)
- OEM Reference
- 63P-11181-00-00
- Other Technical Attributes
- For Cylinder Crankcase 2
What’s in the Box
- 1 x Cylinder Head Gasket (63P-11181-00-00)
Installation Notes
- Disconnect the battery and relieve any pressure in the fuel system.
- Drain the engine coolant and oil completely.
- Remove the valve cover, intake and exhaust manifolds, and any other components obstructing access to the cylinder head.
- Loosen and remove the cylinder head bolts following the reverse of the manufacturer's specified tightening sequence.
- Carefully lift the cylinder head from the engine block. Avoid using pry tools that could damage the mating surfaces.
- Remove the old head gasket. Thoroughly clean both the cylinder head and engine block surfaces of all old gasket material, sealant, oil, and carbon deposits.
- Position the new gasket on the engine block, ensuring correct orientation with dowel pins. Do not use sealant unless explicitly required by the service manual.
- Carefully lower the cylinder head back into place.
- Install and tighten the head bolts in the correct sequence and to the precise torque specifications recommended by the engine manufacturer. This is critical for a proper seal.
- Reinstall all components removed earlier.
- Refill the engine with new oil and the correct type of coolant.
- Reconnect the battery, start the engine, and meticulously check for any fuel, oil, or coolant leaks.
Troubleshooting & FAQ
How do I know if my cylinder head gasket is failing?
Common signs include engine overheating, white smoke from the exhaust (burning coolant), milky or frothy engine oil, loss of compression, or coolant/oil leaks visible on the outside of the engine block.
Is this gasket compatible with F150 models not on the list?
It is highly likely. The F150 platform has used this part number across many model years. We recommend verifying the part number 63P-11181-00-00 is correct for your specific engine serial number before ordering.
Do I need to use sealant with this gasket?
Generally, no. This gasket is designed to create a seal on its own. Unless the official Yamaha service manual for your specific engine model specifies the use of a sealant, you should install it on clean, dry surfaces.
What causes a head gasket to fail?
The most common cause is engine overheating, which can cause the cylinder head to warp and compromise the seal. Other causes include improper installation/torquing, detonation, or simple age and material fatigue.
What is the recommended replacement interval?
A cylinder head gasket is not a routine maintenance item. It is typically only replaced when it fails. There is no standard replacement interval; its lifespan depends on engine operating conditions and maintenance.
Is this a multi-layer steel (MLS) gasket?
Yes, this is a metal gasket designed to match the form and function of the original OEM part, providing a durable seal for modern high-compression 4-stroke engines.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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